[NUC] Why Is My External Hard Drive (HDD) Slow When Connected to an NUC?

Resolution

Each manufacturer has a set of tools/utilities that may fix this issue. They usually come on the external HDD, but they can also usually be downloaded from the manufacturer's website.

Examples:

There may be setting to allow a Sleep timer to be set. The default may be set to, ON and set to a certain time period. It's possible, the HDD sleep timer may conflict with the Windows sleep timer.

Turn this setting to OFF and test the drive.